Pressure plate for



(No Model.)

R. E. BOSGHERT.

PRESSURE PLATBFOR APP-LEGRINDERS. No. 247,007. Patented Sept. 13,1881.

Lake

'a IIIIIIIA N. FUCHS. Phololiuwmnhir. Wllhinmun. D. C.

UNITED STATES.

PATENT OFFICE.

RUFUS E. BoscHEET, or SYRACUSE, NEW YORK.

PRESSURE-PLATE FOR APPLE-GRINDERS.

SPECIFICATION formingpart of Letters Patent No. 247,007, dated September 13, 1881,

Application filed August 11, 1881.

To all whom. it may concern Beitknown that I, RUFUs E. BosoHER'r, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and use ful Improvements in Pressure-Plates for Apple- Grinders, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the vibratory pressure-plates used as a safety-feed to rotary cutting or grinding cylinders, and has, more particularly, reference to the pressure-plate employed in connection with the apple-grinder shown in Patent No. 225,456.

In the use of the said machine it has been found that, owing to the rigidity between the pressure-plate and its weighted lever, the sudden check of the Vibration of said parts produced such concussions as to impair the stabilityof the machine, and in some instances break the pressure-plate or its connections; and since the said plate and its lever were made in one piece, the breakage ofeither of them destroyed the use of both.

It is to obviate these defects that my presentinvention has for its object; and to that end it consists in providing the pressure-plate with a rearward-projecting shoulder, upon which is secured a rubber or other elastic cushion, and pivoting the weighted lever independently of the pi'essureplate, and bringing it to bear on the cushioned shoulder thereof, all as hereinafter more fully described.

In the accompanying drawings, Figure 1 is aside view of my invention, and Fig. 2 is a vertical section taken directly at the side of the weighted lever.

Similar letters of reference indicate corresponding parts.

B represents the grindin g-cylinder, j ournaled horizontally on a frame, A, which is extended the length of the cylinder and across the ends thereof.

From the frame A, at the ends of the cylinder, rise standards D, to the upper ends of which is connected a rod, 0, extended from standard to standard.

0 denotes one of a series of pressure-plates, which are usually arranged side by side along the face of the cylinder and suspended from the rod 0, so as to allow them to vibrate to (No model.)

and from the cylinder. The lower end of the respective pressure-plates is normally nearest the cylinder, and its proximity to the same is limited by a check-rod, 7, which is extended rearward from the lower end of the pressureplate, and has on its extremity an adjustingnut, 11., en gaging a rearwardly-tacin g shoulder, 0, on the frame A, and thus checking the forward swinging of the pressure-plate.

The upper portion of the pressure-plate O, I provide with a rearward-projecting shoulder, a, and along the top thereof is a slot, e, in which lies a lever, Z, which is pivoted at one end on the rod 0 independently of the pressure-plate, and carries at its free end a weight,

w, adapted to be set at a greater or less dis tance from the fulcrum of the lever, according to the pressure desired on the pressure-plate C, said pressure being transmitted to the plate 0 by the bearing of the lover I on the shoulder a.

In the operation of the machine the press yields and swings back to allow the said substance to escape at the base of the pressureplate. So soon as the space between the pressure-plate and cylinder is cleared the pressure of the weighted lever l on the pressure-plate O restores the latter to its normal position, which is determined by the nut n on the end of the check-rod r encountering the shoulder 0 on the frame A, as before described.

To obviate thejars incident to the sudden check in the movement of the pressure-plate, I interpose between the lever Z and its bearing on the shoulder a of the pressure-plate a rubber or other elastic pador cushion, b, which is secured in a socket in the shoulder a, as shown in Fig. 2 of the drawings, said cushion receiving the pressure of the descending lever l, and thus preventing the jars, as aforesaid.

Having thus fully described my invention, I olaim- 1. In combination with the grinding-cylin- IOU der B, the suspended pressure-plate 0, provid ed with the shoulder a, and the lever l, pivoted independently of the pressure-plate and supported at its free end by the shoulder a, substantially as set forth.

2. In combination with the rotary cylinder B, the vibratory pressure-plate 0, having the shoulder a, provided with the cushion b, and the lever Z, pivoted independently of the pressure-plate and resting on the cushion 1) thereof, substantially as shown and described, for the purpose set forth.

In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Syracuse, in the [5 county ofOnondaga, in the State of New York, this 8th day of August, 1881.

RUFUS E. BOSGHERI. [L. s.]

Witnesses:

WM. D. DUNNING, J OHN O. GLARKsoN. 

